Before the load increases to 110 kN, the components exhibit elastoplasticity
; as the load continues to increase, the plastic phase is observed until the component is failure.
By comparing with the centrifuge test data, the finite element method was validated to be able to capture key characteristics of energy piles only subjected to only one single thermal cycle, even using a relatively simple soil constitutive model (the Mohr-Coulomb perfect elastoplasticity
Based on Betti's reciprocal theorem, the elasticplastic contact model can be divided into an elastic and a residual subproblem, whose mutually dependent solutions are obtained in an iterative manner: elastic stresses computed in the elastic subproblem are employed to assess the residual plastic strains using a universal algorithm  for integration of elastoplasticity
equations, whereas residual displacement (i.e., displacement induced by the plastic strains) is superimposed to its elastic counterpart to assess the contact pressure in the elastic subproblem.
Peng, "A novel interpolating element-free Galerkin (IEFG) method for two-dimensional elastoplasticity
," Applied Mathematical Modelling, vol.
Ideally, developments involving both saturated and unsaturated geomaterials should take into account the irreversible deformations of the porous skeleton, which can include both elastoplasticity
and creep [30, 31].
--, A Newton-Krylov-FETI-DP Method with an Adaptive Coarse Space applied to Elastoplasticity
, to appear in Domain Decomposition Methods in Science and Engineering XXII, T.
The soil constitutive relation employed is the Mohr-Coulomb perfect elastoplasticity
model with isotropic linear elasticity.
Therefore, these two phases are linked by a transition zone which shows elastoplasticity
(Hemmat et al.
In a more recent development, for two dimensional elastoplasticity
problems, complex variable moving least square approximation (CVMLS) and EFG based CVEFG were proposed by Peng et al.
Taylor, "A return mapping algorithm for plane stress elastoplasticity
," International Journal for Numerical Methods in Engineering, vol.
Insight into a model for large strain anisotropic elastoplasticity